Twilight accidentally switches the cutie marks of her human friends. Based on What my cutie mark is telling me.

Sunset Shimmer

These animals don't listen, no, not one little bit

They run around out of control and throw their hissy fits

It's up to me to stop them, 'cause plainly you can see

It's got to be my destiny, and it's what my cutie mark is telling me

Fluttershy

I try to keep them laughing, put a smile upon their face

But no matter what I try, it seems a bit of a disgrace

I have to entertain them, it's there for all to see

It's got to be my destiny, and it's what my cutie mark is telling me

Pinkie Pie

I don't care much for pickin' fruit and plowin' fields ain't such a hoot

No matter what I try, I cannot fix this busted water chute!

I've got so many chores to do, it's no fun being me

But it has to be my destiny, 'cause it's what my cutie mark is telling me

Applejack

Lookie here at what I made, I think that it's a dress

I know it doesn't look like much, I'm under some distress

Could y'all give me a hand here and help me fix this mess?

My destiny is not pretty, but it's what my cutie mark is tellin' me

Rarity

I'm in love with playing football, but the others have concerns

For I just made everyone loose, i can't seem to learn

I have to keep on trying, for everyone can see

But it's what my cutie mark is telling me.

Rainbow Dash

I have to understand the others, when they have concerns,

For i just shouted at them, and I hate to learn,

For I have to keep on tryin'

For everyone to see

Rarity and Rainbow Dash

It's got to be

Fluttershy

It's got to be

Pinkie Pie

My destiny

Applejack

My destiny

Rarity, Rainbow Dash, and Fluttershy

And it's what my cutie mark

Pinkie Pie, Sunset Shimmer and Applejack

It's what my cutie mark

Rarity, Rainbow Dash, Fluttershy, Pinkie Pie, Applejack, Sunset Shimmer

Yes, it's what my cutie mark is telling me!